C program to add reversed number with Original Number ?

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
void main()
{
int num1, num2;
char str[10];
clrscr();
printf("\nEnte the Number : ");
scanf("%d",&num1);
sprintf(str,"%d",num1);
strrev(str);
num2 = atoi(str);
printf("\nReversed Number + Original Number = %d ",num1 + num2 );
getch();
}

Output:

Ente the Number : 123Reversed Number + Original Number = 444